What social network is this button?

Question

Sphinx

TinEye swears at poor detail.
Nothing pops up in memory.
For half an hour now I have been trying to find out which social network this button belongs to?

And how would you search if you were me, if you only had an icon?

Answer 1

LinkedIn

Answer 2

And regarding your question “how to search” in such cases, this service often helps me: http://www.gazopa.com/
Maybe it will be useful to someone else;)

Answer 3

You'll have to excuse me. But: any schoolchild, seeing the letters IN and knowing access to Google image search, fits into a few minutes.
www.google.ru/images?q=in&hl=ru&newwindow=1&rlz=1G1GGLQ_RURU291&biw=1280&bih=809&tbs=isch :1,isz:i,itp:clipart,ic:color&prmd=iv&source=lnt&sa=X&ei=kJXPTOCWE4i6jAfVxoWbstartBg&ved=0CBIQpwU06UA 20